/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.skife.jdbi.v2;

import java.sql.Types;
import java.util.Optional;

import org.skife.jdbi.v2.StatementContext;
import org.skife.jdbi.v2.tweak.Argument;
import org.skife.jdbi.v2.tweak.ArgumentFactory;

public class OptionalArgumentFactory implements ArgumentFactory<Optional<?>> {

  @Override
  public boolean accepts(final Class<?> expectedType, final Object value,
      final StatementContext ctx) {
    return value instanceof Optional;
  }

  @Override
  public Argument build(final Class<?> expectedType, final Optional<?> value,
      final StatementContext sctx) {
    return (pos, stmt, ctx) -> {
      if (value.isPresent()) {
        stmt.setObject(pos, value.get());
      } else {
        stmt.setNull(pos, Types.OTHER);
      }
    };
  }

}
